Contact us Contact Info CollNT is a trusted local Territory family business that delivers project management, domestic and commercial building construction, civil construction, engineering, structural fabrication and asset maintenance services. Call Us 08 8947 2598 Write Email admin@collnt.com Visit Office 3/25 Mighall Place, Holtze Postal Address PO Box 3620. Palmerston, NT, 0830 Get in touch Name Email Phone Message Send Message We are Building the Future and Restoring the Past Download Capability Statement